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authorJoe Millenbach <jmillenbach@gmail.com>2013-01-17 22:44:22 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-01-18 16:15:27 -0800
commit4f73bc4dd3e8563ef4109f293a092820dff66d92 (patch)
tree8ebd5d01abaceb70da1932db1a5e7219630b0fd3 /drivers
parenta1bf9584429d61b7096f93ae09325e1ba538e9e8 (diff)
tty: Added a CONFIG_TTY option to allow removal of TTY
The option allows you to remove TTY and compile without errors. This saves space on systems that won't support TTY interfaces anyway. bloat-o-meter output is below. The bulk of this patch consists of Kconfig changes adding "depends on TTY" to various serial devices and similar drivers that require the TTY layer. Ideally, these dependencies would occur on a common intermediate symbol such as SERIO, but most drivers "select SERIO" rather than "depends on SERIO", and "select" does not respect dependencies. bloat-o-meter output comparing our previous minimal to new minimal by removing TTY. The list is filtered to not show removed entries with awk '$3 != "-"' as the list was very long. add/remove: 0/226 grow/shrink: 2/14 up/down: 6/-35356 (-35350) function old new delta chr_dev_init 166 170 +4 allow_signal 80 82 +2 static.__warned 143 142 -1 disallow_signal 63 62 -1 __set_special_pids 95 94 -1 unregister_console 126 121 -5 start_kernel 546 541 -5 register_console 593 588 -5 copy_from_user 45 40 -5 sys_setsid 128 120 -8 sys_vhangup 32 19 -13 do_exit 1543 1526 -17 bitmap_zero 60 40 -20 arch_local_irq_save 137 117 -20 release_task 674 652 -22 static.spin_unlock_irqrestore 308 260 -48 Signed-off-by: Joe Millenbach <jmillenbach@gmail.com> Reviewed-by: Jamey Sharp <jamey@minilop.net> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/bluetooth/Kconfig1
-rw-r--r--drivers/char/Kconfig7
-rw-r--r--drivers/char/pcmcia/Kconfig4
-rw-r--r--drivers/i2c/busses/Kconfig2
-rw-r--r--drivers/input/joystick/Kconfig4
-rw-r--r--drivers/input/keyboard/Kconfig10
-rw-r--r--drivers/input/mouse/Kconfig3
-rw-r--r--drivers/input/serio/Kconfig1
-rw-r--r--drivers/input/touchscreen/Kconfig22
-rw-r--r--drivers/ipack/devices/Kconfig2
-rw-r--r--drivers/isdn/Kconfig1
-rw-r--r--drivers/isdn/capi/Kconfig1
-rw-r--r--drivers/isdn/gigaset/Kconfig1
-rw-r--r--drivers/isdn/hardware/mISDN/Kconfig1
-rw-r--r--drivers/lguest/Kconfig2
-rw-r--r--drivers/media/radio/wl128x/Kconfig2
-rw-r--r--drivers/misc/Kconfig2
-rw-r--r--drivers/misc/ti-st/Kconfig2
-rw-r--r--drivers/mmc/card/Kconfig1
-rw-r--r--drivers/net/caif/Kconfig2
-rw-r--r--drivers/net/can/Kconfig2
-rw-r--r--drivers/net/hamradio/Kconfig4
-rw-r--r--drivers/net/irda/Kconfig2
-rw-r--r--drivers/net/ppp/Kconfig3
-rw-r--r--drivers/net/slip/Kconfig1
-rw-r--r--drivers/net/usb/Kconfig4
-rw-r--r--drivers/net/wan/Kconfig2
-rw-r--r--drivers/pps/clients/Kconfig2
-rw-r--r--drivers/s390/char/Kconfig8
-rw-r--r--drivers/staging/ccg/Kconfig2
-rw-r--r--drivers/staging/dgrp/Kconfig2
-rw-r--r--drivers/staging/fwserial/Kconfig2
-rw-r--r--drivers/staging/sb105x/Kconfig2
-rw-r--r--drivers/tty/Kconfig13
-rw-r--r--drivers/tty/Makefile2
-rw-r--r--drivers/tty/hvc/Kconfig3
-rw-r--r--drivers/tty/serial/Kconfig4
-rw-r--r--drivers/usb/class/Kconfig2
-rw-r--r--drivers/usb/gadget/Kconfig6
-rw-r--r--drivers/usb/serial/Kconfig2
40 files changed, 107 insertions, 32 deletions
diff --git a/drivers/bluetooth/Kconfig b/drivers/bluetooth/Kconfig
index e9f203eadb1f..fdfd61a2d523 100644
--- a/drivers/bluetooth/Kconfig
+++ b/drivers/bluetooth/Kconfig
@@ -26,6 +26,7 @@ config BT_HCIBTSDIO
config BT_HCIUART
tristate "HCI UART driver"
+ depends on TTY
help
Bluetooth HCI UART driver.
This driver is required if you want to use Bluetooth devices with
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 72bedad6bf8c..3bb6fa3930be 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -53,7 +53,7 @@ source "drivers/tty/serial/Kconfig"
config TTY_PRINTK
bool "TTY driver to output user messages via printk"
- depends on EXPERT
+ depends on EXPERT && TTY
default n
---help---
If you say Y here, the support for writing user messages (i.e.
@@ -159,7 +159,7 @@ source "drivers/tty/hvc/Kconfig"
config VIRTIO_CONSOLE
tristate "Virtio console"
- depends on VIRTIO
+ depends on VIRTIO && TTY
select HVC_DRIVER
help
Virtio console for use with lguest and other hypervisors.
@@ -392,6 +392,7 @@ config XILINX_HWICAP
config R3964
tristate "Siemens R3964 line discipline"
+ depends on TTY
---help---
This driver allows synchronous communication with devices using the
Siemens R3964 packet protocol. Unless you are dealing with special
@@ -439,7 +440,7 @@ source "drivers/char/pcmcia/Kconfig"
config MWAVE
tristate "ACP Modem (Mwave) support"
- depends on X86
+ depends on X86 && TTY
select SERIAL_8250
---help---
The ACP modem (Mwave) for Linux is a WinModem. It is composed of a
diff --git a/drivers/char/pcmcia/Kconfig b/drivers/char/pcmcia/Kconfig
index 6614416a8623..2a166d56738a 100644
--- a/drivers/char/pcmcia/Kconfig
+++ b/drivers/char/pcmcia/Kconfig
@@ -7,7 +7,7 @@ menu "PCMCIA character devices"
config SYNCLINK_CS
tristate "SyncLink PC Card support"
- depends on PCMCIA
+ depends on PCMCIA && TTY
help
Enable support for the SyncLink PC Card serial adapter, running
asynchronous and HDLC communications up to 512Kbps. The port is
@@ -45,7 +45,7 @@ config CARDMAN_4040
config IPWIRELESS
tristate "IPWireless 3G UMTS PCMCIA card support"
- depends on PCMCIA && NETDEVICES
+ depends on PCMCIA && NETDEVICES && TTY
select PPP
help
This is a driver for 3G UMTS PCMCIA card from IPWireless company. In
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index bdca5111eb9d..cf474b2df4ae 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -803,7 +803,7 @@ config I2C_PARPORT_LIGHT
config I2C_TAOS_EVM
tristate "TAOS evaluation module"
- depends on EXPERIMENTAL
+ depends on EXPERIMENTAL && TTY
select SERIO
select SERIO_SERPORT
default n
diff --git a/drivers/input/joystick/Kconfig b/drivers/input/joystick/Kconfig
index 56eb471b5576..055bcaba774c 100644
--- a/drivers/input/joystick/Kconfig
+++ b/drivers/input/joystick/Kconfig
@@ -132,6 +132,8 @@ config JOYSTICK_TMDC
source "drivers/input/joystick/iforce/Kconfig"
+if TTY
+
config JOYSTICK_WARRIOR
tristate "Logitech WingMan Warrior joystick"
select SERIO
@@ -205,6 +207,8 @@ config JOYSTICK_ZHENHUA
To compile this driver as a module, choose M here: the
module will be called zhenhua.
+endif # TTY
+
config JOYSTICK_DB9
tristate "Multisystem, Sega Genesis, Saturn joysticks and gamepads"
depends on PARPORT
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 5a240c60342d..008f96aaf19e 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -69,6 +69,7 @@ config KEYBOARD_ATARI
config KEYBOARD_ATKBD
tristate "AT keyboard" if EXPERT || !X86
default y
+ depends on TTY
select SERIO
select SERIO_LIBPS2
select SERIO_I8042 if X86
@@ -153,6 +154,7 @@ config KEYBOARD_BFIN
config KEYBOARD_LKKBD
tristate "DECstation/VAXstation LK201/LK401 keyboard"
+ depends on TTY
select SERIO
help
Say Y here if you want to use a LK201 or LK401 style serial
@@ -268,7 +270,7 @@ config KEYBOARD_HIL_OLD
config KEYBOARD_HIL
tristate "HP HIL keyboard/pointer support"
- depends on GSC || HP300
+ depends on (GSC || HP300) && TTY
default y
select HP_SDC
select HIL_MLC
@@ -400,6 +402,7 @@ config KEYBOARD_IMX
config KEYBOARD_NEWTON
tristate "Newton keyboard"
+ depends on TTY
select SERIO
help
Say Y here if you have a Newton keyboard on a serial port.
@@ -479,6 +482,8 @@ config KEYBOARD_SAMSUNG
To compile this driver as a module, choose M here: the
module will be called samsung-keypad.
+if TTY
+
config KEYBOARD_STOWAWAY
tristate "Stowaway keyboard"
select SERIO
@@ -501,6 +506,8 @@ config KEYBOARD_SUNKBD
To compile this driver as a module, choose M here: the
module will be called sunkbd.
+endif # TTY
+
config KEYBOARD_SH_KEYSC
tristate "SuperH KEYSC keypad support"
depends on SUPERH || ARCH_SHMOBILE
@@ -597,6 +604,7 @@ config KEYBOARD_TWL4030
config KEYBOARD_XTKBD
tristate "XT keyboard"
+ depends on TTY
select SERIO
help
Say Y here if you want to use the old IBM PC/XT keyboard (or
diff --git a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig
index cd6268cf7cd5..fc160f72dc4e 100644
--- a/drivers/input/mouse/Kconfig
+++ b/drivers/input/mouse/Kconfig
@@ -14,6 +14,7 @@ if INPUT_MOUSE
config MOUSE_PS2
tristate "PS/2 mouse"
+ depends on TTY
default y
select SERIO
select SERIO_LIBPS2
@@ -138,6 +139,7 @@ config MOUSE_PS2_OLPC
config MOUSE_SERIAL
tristate "Serial mouse"
+ depends on TTY
select SERIO
help
Say Y here if you have a serial (RS-232, COM port) mouse connected
@@ -262,6 +264,7 @@ config MOUSE_RISCPC
config MOUSE_VSXXXAA
tristate "DEC VSXXX-AA/GA mouse and VSXXX-AB tablet"
+ depends on TTY
select SERIO
help
Say Y (or M) if you want to use a DEC VSXXX-AA (hockey
diff --git a/drivers/input/serio/Kconfig b/drivers/input/serio/Kconfig
index 4a4e182c33e7..81ee7551148e 100644
--- a/drivers/input/serio/Kconfig
+++ b/drivers/input/serio/Kconfig
@@ -4,6 +4,7 @@
config SERIO
tristate "Serial I/O support" if EXPERT || !X86
default y
+ depends on TTY
help
Say Yes here if you have any input device that uses serial I/O to
communicate with the system. This includes the
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 515cfe790543..3d6f548dd3d4 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -192,6 +192,8 @@ config TOUCHSCREEN_DA9052
To compile this driver as a module, choose M here: the
module will be called da9052_tsi.
+if TTY
+
config TOUCHSCREEN_DYNAPRO
tristate "Dynapro serial touchscreen"
select SERIO
@@ -216,6 +218,8 @@ config TOUCHSCREEN_HAMPSHIRE
To compile this driver as a module, choose M here: the
module will be called hampshire.
+endif # TTY
+
config TOUCHSCREEN_EETI
tristate "EETI touchscreen panel support"
depends on I2C
@@ -237,6 +241,7 @@ config TOUCHSCREEN_EGALAX
config TOUCHSCREEN_FUJITSU
tristate "Fujitsu serial touchscreen"
+ depends on TTY
select SERIO
help
Say Y here if you have the Fujitsu touchscreen (such as one
@@ -275,6 +280,8 @@ config TOUCHSCREEN_S3C2410
To compile this driver as a module, choose M here: the
module will be called s3c2410_ts.
+if TTY
+
config TOUCHSCREEN_GUNZE
tristate "Gunze AHL-51S touchscreen"
select SERIO
@@ -311,6 +318,8 @@ config TOUCHSCREEN_WACOM_W8001
To compile this driver as a module, choose M here: the
module will be called wacom_w8001.
+endif # TTY
+
config TOUCHSCREEN_WACOM_I2C
tristate "Wacom Tablet support (I2C)"
depends on I2C
@@ -369,6 +378,8 @@ config TOUCHSCREEN_MMS114
To compile this driver as a module, choose M here: the
module will be called mms114.
+if TTY
+
config TOUCHSCREEN_MTOUCH
tristate "MicroTouch serial touchscreens"
select SERIO
@@ -393,6 +404,8 @@ config TOUCHSCREEN_INEXIO
To compile this driver as a module, choose M here: the
module will be called inexio.
+endif # TTY
+
config TOUCHSCREEN_INTEL_MID
tristate "Intel MID platform resistive touchscreen"
depends on INTEL_SCU_IPC
@@ -450,6 +463,7 @@ config TOUCHSCREEN_HTCPEN
config TOUCHSCREEN_PENMOUNT
tristate "Penmount serial touchscreen"
+ depends on TTY
select SERIO
help
Say Y here if you have a Penmount serial touchscreen connected to
@@ -493,6 +507,8 @@ config TOUCHSCREEN_TNETV107X
To compile this driver as a module, choose M here: the
module will be called tnetv107x-ts.
+if TTY
+
config TOUCHSCREEN_TOUCHRIGHT
tristate "Touchright serial touchscreen"
select SERIO
@@ -517,6 +533,8 @@ config TOUCHSCREEN_TOUCHWIN
To compile this driver as a module, choose M here: the
module will be called touchwin.
+endif # TTY
+
config TOUCHSCREEN_TI_AM335X_TSC
tristate "TI Touchscreen Interface"
depends on MFD_TI_AM335X_TSCADC
@@ -790,6 +808,8 @@ config TOUCHSCREEN_USB_EASYTOUCH
Say Y here if you have an EasyTouch USB Touch controller.
If unsure, say N.
+if TTY
+
config TOUCHSCREEN_TOUCHIT213
tristate "Sahara TouchIT-213 touchscreen"
select SERIO
@@ -813,6 +833,8 @@ config TOUCHSCREEN_TSC_SERIO
To compile this driver as a module, choose M here: the
module will be called tsc40.
+endif # TTY
+
config TOUCHSCREEN_TSC2005
tristate "TSC2005 based touchscreens"
depends on SPI_MASTER && GENERIC_HARDIRQS
diff --git a/drivers/ipack/devices/Kconfig b/drivers/ipack/devices/Kconfig
index 0b82fdc198c0..907a8cb48f2a 100644
--- a/drivers/ipack/devices/Kconfig
+++ b/drivers/ipack/devices/Kconfig
@@ -1,6 +1,6 @@
config SERIAL_IPOCTAL
tristate "IndustryPack IP-OCTAL uart support"
- depends on IPACK_BUS
+ depends on IPACK_BUS && TTY
help
This driver supports the IPOCTAL serial port device for the IndustryPack bus.
default n
diff --git a/drivers/isdn/Kconfig b/drivers/isdn/Kconfig
index 86cd75a0e84d..ef661acdda17 100644
--- a/drivers/isdn/Kconfig
+++ b/drivers/isdn/Kconfig
@@ -22,6 +22,7 @@ if ISDN
menuconfig ISDN_I4L
tristate "Old ISDN4Linux (deprecated)"
+ depends on TTY
---help---
This driver allows you to use an ISDN adapter for networking
connections and as dialin/out device. The isdn-tty's have a built
diff --git a/drivers/isdn/capi/Kconfig b/drivers/isdn/capi/Kconfig
index 15c3ffd9d860..f04686580040 100644
--- a/drivers/isdn/capi/Kconfig
+++ b/drivers/isdn/capi/Kconfig
@@ -18,6 +18,7 @@ config CAPI_TRACE
config ISDN_CAPI_MIDDLEWARE
bool "CAPI2.0 Middleware support"
+ depends on TTY
help
This option will enhance the capabilities of the /dev/capi20
interface. It will provide a means of moving a data connection,
diff --git a/drivers/isdn/gigaset/Kconfig b/drivers/isdn/gigaset/Kconfig
index b18a92c32184..dde5e09e6267 100644
--- a/drivers/isdn/gigaset/Kconfig
+++ b/drivers/isdn/gigaset/Kconfig
@@ -1,5 +1,6 @@
menuconfig ISDN_DRV_GIGASET
tristate "Siemens Gigaset support"
+ depends on TTY
select CRC_CCITT
select BITREVERSE
help
diff --git a/drivers/isdn/hardware/mISDN/Kconfig b/drivers/isdn/hardware/mISDN/Kconfig
index eadc1cd34a20..b8611e3e5e74 100644
--- a/drivers/isdn/hardware/mISDN/Kconfig
+++ b/drivers/isdn/hardware/mISDN/Kconfig
@@ -76,6 +76,7 @@ config MISDN_NETJET
tristate "Support for NETJet cards"
depends on MISDN
depends on PCI
+ depends on TTY
select MISDN_IPAC
select ISDN_HDLC
select ISDN_I4L
diff --git a/drivers/lguest/Kconfig b/drivers/lguest/Kconfig
index 34ae49dc557c..f9c43145a611 100644
--- a/drivers/lguest/Kconfig
+++ b/drivers/lguest/Kconfig
@@ -1,6 +1,6 @@
config LGUEST
tristate "Linux hypervisor example code"
- depends on X86_32 && EXPERIMENTAL && EVENTFD
+ depends on X86_32 && EXPERIMENTAL && EVENTFD && TTY
select HVC_DRIVER
---help---
This is a very simple module which allows you to run
diff --git a/drivers/media/radio/wl128x/Kconfig b/drivers/media/radio/wl128x/Kconfig
index ea1e6545df36..f359be7e9dd9 100644
--- a/drivers/media/radio/wl128x/Kconfig
+++ b/drivers/media/radio/wl128x/Kconfig
@@ -4,7 +4,7 @@
menu "Texas Instruments WL128x FM driver (ST based)"
config RADIO_WL128X
tristate "Texas Instruments WL128x FM Radio"
- depends on VIDEO_V4L2 && RFKILL && GPIOLIB
+ depends on VIDEO_V4L2 && RFKILL && GPIOLIB && TTY
select TI_ST if NET
help
Choose Y here if you have this FM radio chip.
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index b151b7c1bd59..4b2bb939dde1 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -127,7 +127,7 @@ config PHANTOM
config INTEL_MID_PTI
tristate "Parallel Trace Interface for MIPI P1149.7 cJTAG standard"
- depends on PCI
+ depends on PCI && TTY
default n
help
The PTI (Parallel Trace Interface) driver directs
diff --git a/drivers/misc/ti-st/Kconfig b/drivers/misc/ti-st/Kconfig
index abb5de1afce3..f34dcc514730 100644
--- a/drivers/misc/ti-st/Kconfig
+++ b/drivers/misc/ti-st/Kconfig
@@ -5,7 +5,7 @@
menu "Texas Instruments shared transport line discipline"
config TI_ST
tristate "Shared transport core driver"
- depends on NET && GPIOLIB
+ depends on NET && GPIOLIB && TTY
select FW_LOADER
help
This enables the shared transport core driver for TI
diff --git a/drivers/mmc/card/Kconfig b/drivers/mmc/card/Kconfig
index 3b1f783bf924..5562308699bc 100644
--- a/drivers/mmc/card/Kconfig
+++ b/drivers/mmc/card/Kconfig
@@ -52,6 +52,7 @@ config MMC_BLOCK_BOUNCE
config SDIO_UART
tristate "SDIO UART/GPS class support"
+ depends on TTY
help
SDIO function driver for SDIO cards that implements the UART
class, as well as the GPS class which appears like a UART.
diff --git a/drivers/net/caif/Kconfig b/drivers/net/caif/Kconfig
index abf4d7a9dcce..60c2142373c9 100644
--- a/drivers/net/caif/Kconfig
+++ b/drivers/net/caif/Kconfig
@@ -6,7 +6,7 @@ comment "CAIF transport drivers"
config CAIF_TTY
tristate "CAIF TTY transport driver"
- depends on CAIF
+ depends on CAIF && TTY
default n
---help---
The CAIF TTY transport driver is a Line Discipline (ldisc)
diff --git a/drivers/net/can/Kconfig b/drivers/net/can/Kconfig
index b56bd9e80957..72df3a306a08 100644
--- a/drivers/net/can/Kconfig
+++ b/drivers/net/can/Kconfig
@@ -13,7 +13,7 @@ config CAN_VCAN
config CAN_SLCAN
tristate "Serial / USB serial CAN Adaptors (slcan)"
- depends on CAN
+ depends on CAN && TTY
---help---
CAN driver for several 'low cost' CAN interfaces that are attached
via serial lines or via USB-to-serial adapters using the LAWICEL
diff --git a/drivers/net/hamradio/Kconfig b/drivers/net/hamradio/Kconfig
index 95dbcfdf131d..bf5e59687680 100644
--- a/drivers/net/hamradio/Kconfig
+++ b/drivers/net/hamradio/Kconfig
@@ -1,6 +1,6 @@
config MKISS
tristate "Serial port KISS driver"
- depends on AX25
+ depends on AX25 && TTY
select CRC16
---help---
KISS is a protocol used for the exchange of data between a computer
@@ -18,7 +18,7 @@ config MKISS
config 6PACK
tristate "Serial port 6PACK driver"
- depends on AX25
+ depends on AX25 && TTY
---help---
6pack is a transmission protocol for the data exchange between your
PC and your TNC (the Terminal Node Controller acts as a kind of
diff --git a/drivers/net/irda/Kconfig b/drivers/net/irda/Kconfig
index 595205406d73..e1454cdec14b 100644
--- a/drivers/net/irda/Kconfig
+++ b/drivers/net/irda/Kconfig
@@ -5,7 +5,7 @@ comment "SIR device drivers"
config IRTTY_SIR
tristate "IrTTY (uses Linux serial driver)"
- depends on IRDA
+ depends on IRDA && TTY
help
Say Y here if you want to build support for the IrTTY line
discipline. To compile it as a module, choose M here: the module
diff --git a/drivers/net/ppp/Kconfig b/drivers/net/ppp/Kconfig
index 872df3ef07a6..3d9ef4f1e600 100644
--- a/drivers/net/ppp/Kconfig
+++ b/drivers/net/ppp/Kconfig
@@ -147,6 +147,7 @@ config PPPOL2TP
Support for PPP-over-L2TP socket family. L2TP is a protocol
used by ISPs and enterprises to tunnel PPP traffic over UDP
tunnels. L2TP is replacing PPTP for VPN uses.
+if TTY
config PPP_ASYNC
tristate "PPP support for async serial ports"
@@ -172,4 +173,6 @@ config PPP_SYNC_TTY
To compile this driver as a module, choose M here.
+endif # TTY
+
endif # PPP
diff --git a/drivers/net/slip/Kconfig b/drivers/net/slip/Kconfig
index 211b160e4e9c..48e68714eef3 100644
--- a/drivers/net/slip/Kconfig
+++ b/drivers/net/slip/Kconfig
@@ -4,6 +4,7 @@
config SLIP
tristate "SLIP (serial line) support"
+ depends on TTY
---help---
Say Y if you intend to use SLIP or CSLIP (compressed SLIP) to
connect to your Internet service provider or to connect to some
diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index ef976215b649..bd33153261ce 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -445,7 +445,7 @@ config USB_NET_QMI_WWAN
config USB_HSO
tristate "Option USB High Speed Mobile Devices"
- depends on USB && RFKILL
+ depends on USB && RFKILL && TTY
default n
help
Choose this option if you have an Option HSDPA/HSUPA card.
@@ -493,7 +493,7 @@ config USB_SIERRA_NET
config USB_VL600
tristate "LG VL600 modem dongle"
- depends on USB_NET_CDCETHER
+ depends on USB_NET_CDCETHER && TTY
select USB_ACM
help
Select this if you want to use an LG Electronics 4G/LTE usb modem
diff --git a/drivers/net/wan/Kconfig b/drivers/net/wan/Kconfig
index d58431e99f73..61eb8994b34f 100644
--- a/drivers/net/wan/Kconfig
+++ b/drivers/net/wan/Kconfig
@@ -429,7 +429,7 @@ config LAPBETHER
config X25_ASY
tristate "X.25 async driver (EXPERIMENTAL)"
- depends on LAPB && X25
+ depends on LAPB && X25 && TTY
---help---
Send and receive X.25 frames over regular asynchronous serial
lines such as telephone lines equipped with ordinary modems.
diff --git a/drivers/pps/clients/Kconfig b/drivers/pps/clients/Kconfig
index 445197d4a8c4..6efd9b60d8ff 100644
--- a/drivers/pps/clients/Kconfig
+++ b/drivers/pps/clients/Kconfig
@@ -17,7 +17,7 @@ config PPS_CLIENT_KTIMER
config PPS_CLIENT_LDISC
tristate "PPS line discipline"
- depends on PPS
+ depends on PPS && TTY
help
If you say yes here you get support for a PPS source connected
with the CD (Carrier Detect) pin of your serial port.
diff --git a/drivers/s390/char/Kconfig b/drivers/s390/char/Kconfig
index 2c9a776bd63c..71bf959732fe 100644
--- a/drivers/s390/char/Kconfig
+++ b/drivers/s390/char/Kconfig
@@ -11,7 +11,7 @@ config TN3270
config TN3270_TTY
def_tristate y
prompt "Support for tty input/output on 3270 terminals"
- depends on TN3270
+ depends on TN3270 && TTY
help
Include support for using an IBM 3270 terminal as a Linux tty.
@@ -33,7 +33,7 @@ config TN3270_CONSOLE
config TN3215
def_bool y
prompt "Support for 3215 line mode terminal"
- depends on CCW
+ depends on CCW && TTY
help
Include support for IBM 3215 line-mode terminals.
@@ -51,7 +51,7 @@ config CCW_CONSOLE
config SCLP_TTY
def_bool y
prompt "Support for SCLP line mode terminal"
- depends on S390
+ depends on S390 && TTY
help
Include support for IBM SCLP line-mode terminals.
@@ -66,7 +66,7 @@ config SCLP_CONSOLE
config SCLP_VT220_TTY
def_bool y
prompt "Support for SCLP VT220-compatible terminal"
- depends on S390
+ depends on S390 && TTY
help
Include support for an IBM SCLP VT220-compatible terminal.
diff --git a/drivers/staging/ccg/Kconfig b/drivers/staging/ccg/Kconfig
index 8997a8c757aa..7ed5bc6caadb 100644
--- a/drivers/staging/ccg/Kconfig
+++ b/drivers/staging/ccg/Kconfig
@@ -2,7 +2,7 @@ if USB_GADGET
config USB_G_CCG
tristate "Configurable Composite Gadget (STAGING)"
- depends on STAGING && BLOCK && NET && !USB_ZERO && !USB_ZERO_HNPTEST && !USB_AUDIO && !GADGET_UAC1 && !USB_ETH && !USB_ETH_RNDIS && !USB_ETH_EEM && !USB_G_NCM && !USB_GADGETFS && !USB_FUNCTIONFS && !USB_FUNCTIONFS_ETH && !USB_FUNCTIONFS_RNDIS && !USB_FUNCTIONFS_GENERIC && !USB_FILE_STORAGE && !USB_FILE_STORAGE_TEST && !USB_MASS_STORAGE && !USB_G_SERIAL && !USB_MIDI_GADGET && !USB_G_PRINTER && !USB_CDC_COMPOSITE && !USB_G_NOKIA && !USB_G_ACM_MS && !USB_G_MULTI && !USB_G_MULTI_RNDIS && !USB_G_MULTI_CDC && !USB_G_HID && !USB_G_DBGP && !USB_G_WEBCAM
+ depends on STAGING && BLOCK && NET && !USB_ZERO && !USB_ZERO_HNPTEST && !USB_AUDIO && !GADGET_UAC1 && !USB_ETH && !USB_ETH_RNDIS && !USB_ETH_EEM && !USB_G_NCM && !USB_GADGETFS && !USB_FUNCTIONFS && !USB_FUNCTIONFS_ETH && !USB_FUNCTIONFS_RNDIS && !USB_FUNCTIONFS_GENERIC && !USB_FILE_STORAGE && !USB_FILE_STORAGE_TEST && !USB_MASS_STORAGE && !USB_G_SERIAL && !USB_MIDI_GADGET && !USB_G_PRINTER && !USB_CDC_COMPOSITE && !USB_G_NOKIA && !USB_G_ACM_MS && !USB_G_MULTI && !USB_G_MULTI_RNDIS && !USB_G_MULTI_CDC && !USB_G_HID && !USB_G_DBGP && !USB_G_WEBCAM && TTY
help
The Configurable Composite Gadget supports multiple USB
functions: acm, mass storage, rndis and FunctionFS.
diff --git a/drivers/staging/dgrp/Kconfig b/drivers/staging/dgrp/Kconfig
index 39f4bb65ec83..e4c41552923a 100644
--- a/drivers/staging/dgrp/Kconfig
+++ b/drivers/staging/dgrp/Kconfig
@@ -1,7 +1,7 @@
config DGRP
tristate "Digi Realport driver"
default n
- depends on SYSFS
+ depends on SYSFS && TTY
---help---
Support for Digi Realport devices. These devices allow you to
access remote serial ports as if they are local tty devices. This
diff --git a/drivers/staging/fwserial/Kconfig b/drivers/staging/fwserial/Kconfig
index 580406cb1808..9cdb3cdc4b66 100644
--- a/drivers/staging/fwserial/Kconfig
+++ b/drivers/staging/fwserial/Kconfig
@@ -1,6 +1,6 @@
config FIREWIRE_SERIAL
tristate "TTY over Firewire"
- depends on FIREWIRE
+ depends on FIREWIRE && TTY
help
This enables TTY over IEEE 1394, providing high-speed serial
connectivity to cabled peers.
diff --git a/drivers/staging/sb105x/Kconfig b/drivers/staging/sb105x/Kconfig
index 3d0d0eb95b8c..6a2e1b78e844 100644
--- a/drivers/staging/sb105x/Kconfig
+++ b/drivers/staging/sb105x/Kconfig
@@ -1,7 +1,7 @@
config SB105X
tristate "SystemBase PCI Multiport UART"
select SERIAL_CORE
- depends on PCI && BROKEN
+ depends on PCI && TTY && BROKEN
help
A driver for the SystemBase Multi-2/PCI serial card
diff --git a/drivers/tty/Kconfig b/drivers/tty/Kconfig
index 0ecf22b6a38e..a79fd8ebd56e 100644
--- a/drivers/tty/Kconfig
+++ b/drivers/tty/Kconfig
@@ -1,3 +1,14 @@
+config TTY
+ bool "Enable TTY" if EXPERT
+ default y
+ ---help---
+ Allows you to remove TTY support which can save space, and
+ blocks features that require TTY from inclusion in the kernel.
+ TTY is required for any text terminals or serial port
+ communication. Most users should leave this enabled.
+
+if TTY
+
config VT
bool "Virtual terminal" if EXPERT
depends on !S390 && !UML
@@ -388,3 +399,5 @@ config PPC_EARLY_DEBUG_EHV_BC_HANDLE
If the number you specify is not a valid byte channel handle, then
there simply will be no early console output. This is true also
if you don't boot under a hypervisor at all.
+
+endif # TTY
diff --git a/drivers/tty/Makefile b/drivers/tty/Makefile
index 2953059530e4..df5663d0d55e 100644
--- a/drivers/tty/Makefile
+++ b/drivers/tty/Makefile
@@ -1,4 +1,4 @@
-obj-y += tty_io.o n_tty.o tty_ioctl.o tty_ldisc.o \
+obj-$(CONFIG_TTY) += tty_io.o n_tty.o tty_ioctl.o tty_ldisc.o \
tty_buffer.o tty_port.o tty_mutex.o
obj-$(CONFIG_LEGACY_PTYS) += pty.o
obj-$(CONFIG_UNIX98_PTYS) += pty.o
diff --git a/drivers/tty/hvc/Kconfig b/drivers/tty/hvc/Kconfig
index f47b734c6a7a..8902f9b4df71 100644
--- a/drivers/tty/hvc/Kconfig
+++ b/drivers/tty/hvc/Kconfig
@@ -1,3 +1,5 @@
+if TTY
+
config HVC_DRIVER
bool
help
@@ -119,3 +121,4 @@ config HVCS
which will also be compiled when this driver is built as a
module.
+endif # TTY
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index 2dc429357fe3..e9aeccdfbe35 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -2,6 +2,8 @@
# Serial device configuration
#
+if TTY
+
menu "Serial drivers"
depends on HAS_IOMEM
@@ -1483,3 +1485,5 @@ config SERIAL_RP2_NR_UARTS
need to be increased.
endmenu
+
+endif # TTY
diff --git a/drivers/usb/class/Kconfig b/drivers/usb/class/Kconfig
index 2519e320098f..316aac8e4ca1 100644
--- a/drivers/usb/class/Kconfig
+++ b/drivers/usb/class/Kconfig
@@ -6,7 +6,7 @@ comment "USB Device Class drivers"
config USB_ACM
tristate "USB Modem (CDC ACM) support"
- depends on USB
+ depends on USB && TTY
---help---
This driver supports USB modems and ISDN adapters which support the
Communication Device Class Abstract Control Model interface.
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 14625fd2cecd..a1bd951f9cb7 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -750,6 +750,7 @@ config USB_GADGET_TARGET
config USB_G_SERIAL
tristate "Serial Gadget (with CDC ACM and CDC OBEX support)"
+ depends on TTY
select USB_LIBCOMPOSITE
help
The Serial Gadget talks to the Linux-USB generic serial driver.
@@ -799,6 +800,8 @@ config USB_G_PRINTER
For more information, see Documentation/usb/gadget_printer.txt
which includes sample code for accessing the device file.
+if TTY
+
config USB_CDC_COMPOSITE
tristate "CDC Composite Device (Ethernet and ACM)"
depends on NET
@@ -879,6 +882,8 @@ config USB_G_MULTI_CDC
If unsure, say "y".
+endif # TTY
+
config USB_G_HID
tristate "HID Gadget"
select USB_LIBCOMPOSITE
@@ -895,6 +900,7 @@ config USB_G_HID
# Standalone / single function gadgets
config USB_G_DBGP
tristate "EHCI Debug Device Gadget"
+ depends on TTY
select USB_LIBCOMPOSITE
help
This gadget emulates an EHCI Debug device. This is useful when you want
diff --git a/drivers/usb/serial/Kconfig b/drivers/usb/serial/Kconfig
index 76f462241738..d8e35fe30b0c 100644
--- a/drivers/usb/serial/Kconfig
+++ b/drivers/usb/serial/Kconfig
@@ -4,7 +4,7 @@
menuconfig USB_SERIAL
tristate "USB Serial Converter support"
- depends on USB
+ depends on USB && TTY
---help---
Say Y here if you have a USB device that provides normal serial
ports, or acts like a serial device, and you want to connect it to